Orgo Lab Flashcards
1
Q
How does the presence of impurities impact the melting point of a compound?
A
Impurities tend to lower and broaden the melting point range. Say you have caffeine (mp= 235C) and your sample has alot of impurities. The mp range may now be 195C-220C.
2
Q
Retention factor
A
In TLC, it is the distance migrated by compound/ total distance traveled by solvent.
